How to reduce an application RAM memory use on Mojave

Hello,

I am working on a 2015 Mac Mini, bought in 2018, that is not shown on your first selection of hardware to enter this section

I am using AppPolice to have a control over the amount of CPU used my my applications

I cannot find any way to reduce the amount of RAM taken my my applications

I have 16 GB of Ram and Bztransmit is eating 4 to 5 gb of ram.

Bztransmit is the Blackblaze operation name (Blackblaze is a nice backup system uploading datas, making permanent backups. Bztransmit is the operation name on the activity monitor) is frequently taking 5 GB for it's own, so I have to force quit this operation to instantly retrieve free memory and avoid freezing my work.

How can we manually reduce the amount of RAM taken by any application?

Thanks for your support.

Mac mini 2018 or later

Posted on Dec 29, 2018 10:31 AM

Top-ranking reply

Kappy

Level 10

362,007 points

Posted on Dec 29, 2018 10:59 AM

Firstly, a program intended to reduce CPU usage will not reduce RAM usage. These are two completely different resources. Secondly, you cannot control the amount of RAM used by a program. That is set by the programmer as part of the apps programming. Mojave has its own memory management. If you have a single app using too much RAM then it's a fault of the app or the result of an app's malfunctioning. You should contact the developer about the problem in order to see if there is a solution.

I would suggest you stop using cloud backups such as Back Blaze. They are slow and use a lot of resources. macOS has its own built-in backup software, Time Machine. Attach an external HDD for local backups that are faster and less resource intensive. If you need off-site copies, then make monthly updates for those or use a second HDD to clone the backup drive and store the copy off-site.

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20 replies

Lexiepex

Level 6

14,108 points

Dec 29, 2018 10:58 AM in response to 75Vincent

Why are you concerned whether Blackblaze (not my favorite) uses much Ram? As long as you have enough "Available Ram" there is nothing wrong with letting those apps use a lot of Ram.

BDAqua

Level 10

250,259 points

Dec 29, 2018 4:14 PM in response to 75Vincent

I wonder if this has any effect on COU usage?

https://tidbits.com/2009/10/06/revealing-mac-os-xs-hidden-single-application-mode/

75Vincent Author

Level 1

4 points

Dec 30, 2018 12:01 PM in response to Lexiepex

I only have enough RAM when Blackblaze is not in use

75Vincent Author

Level 1

4 points

Dec 30, 2018 12:02 PM in response to BDAqua

You mean CPU, or COU (I have no idea what it is) Blackblaze CPU usage remains low

75Vincent Author

Level 1

4 points

Dec 30, 2018 3:18 PM in response to BobTheFisherman

Sure, and pay much more to Apple rather than to Baclblaze to have Apple saving my 8 terrabytes of datas?

Apple is extremely expensive when it is a matter of terrabytes.

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How to reduce an application RAM memory use on Mojave